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<span id="Strings"></span><div class="header">
<p>
Next: <a href="Data-Containers.html" accesskey="n" rel="next">Data Containers</a>, Previous: <a href="Numeric-Data-Types.html" accesskey="p" rel="prev">Numeric Data Types</a>, Up: <a href="index.html" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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<hr>
<span id="Strings-1"></span><h2 class="chapter">5 Strings</h2>
<span id="index-strings-1"></span>
<span id="index-character-strings-1"></span>
<span id="index-_0022-1"></span>
<span id="index-_0027-1"></span>

<p>A <em>string constant</em> consists of a sequence of characters enclosed in
either double-quote or single-quote marks.  For example, both of the
following expressions
</p>
<div class="example">
<pre class="example">&quot;parrot&quot;
'parrot'
</pre></div>

<p>represent the string whose contents are &lsquo;<samp>parrot</samp>&rsquo;.  Strings in
Octave can be of any length.
</p>
<p>Since the single-quote mark is also used for the transpose operator
(see <a href="Arithmetic-Ops.html">Arithmetic Ops</a>) but double-quote marks have no other purpose in
Octave, it is best to use double-quote marks to denote strings.
</p>
<p>Strings can be concatenated using the notation for defining matrices.  For
example, the expression
</p>
<div class="example">
<pre class="example">[ &quot;foo&quot; , &quot;bar&quot; , &quot;baz&quot; ]
</pre></div>

<p>produces the string whose contents are &lsquo;<samp>foobarbaz</samp>&rsquo;.  See <a href="Numeric-Data-Types.html">Numeric Data Types</a>, for more information about creating matrices.
</p>
<p>While strings can in principle store arbitrary content, most functions expect
them to be UTF-8 encoded Unicode strings.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="Escape-Sequences-in-String-Constants.html" accesskey="1">Escape Sequences in String Constants</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Character-Arrays.html" accesskey="2">Character Arrays</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Creating-Strings.html" accesskey="3">Creating Strings</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Comparing-Strings.html" accesskey="4">Comparing Strings</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Manipulating-Strings.html" accesskey="5">Manipulating Strings</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="String-Conversions.html" accesskey="6">String Conversions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Character-Class-Functions.html" accesskey="7">Character Class Functions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
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